| 释义 |
硅guī非金属元素,符号Si(silicium)。黑灰色晶体或粉末,自然界分布极广,普通的沙子就是不纯的二氧化硅。有单向导电性。用来制合金等,也是重要的半导体材料。{silicium (Si); silicon; non-metallic element, usu. a dark crystalline substance or powder, occurring extensively in the earth's crust, also found in sand in the form of silica, a one-way conductor of electricity, used in alloys and as a key material in semi-conductors;}旧称{formerly called}矽(xī)。 |